cro1 help

I just started playing with my cro1 and i dont know much about it. This is my first time with a crawler and i was woundering if anyone had any suggestions. My back end keeps blowing out and im not sure why. I was told to get an aluminum drive line,but i thought i would take some other oppinions first. Please help!

 

they are fun just got one last month get rid of the cantilever setup do you have pics so i can help.are you blowing out rear ends or drive lines if it is drive lines i have the same problem  what drive lines are you using i have traxxas i have shortened the linkedeg think i will build some high lift links and shorten the bottoms.also the ears on the drive line need to be shaved they bind.thought about punisher shaft but then you blowout rear-ends plastic drive lines are cheap.don't for get to locktite the axle set screw it will fall out.check out my post these guys are helpful.

 

When does it blow out. Just cruzin? Or when under stress. Im not sure but it seems like theres some binding in your rear dif. Wish I could help more but I run axial.  I have always seen problems from those who have the cro1.